Sole-channeling cutter



R. R. LEREVERS.

SOLE CHANNELING CUTTER. APPLICATION FILED JMLZB, 1921.

1,392,422, Patentedflt. 4, 1921.

1?. f2. Lara e4 6 NVENIOR ROBERT It. 'Lnnnvmts;

SOLE-CHANNELING cu'r'rnn;

Application filed January 28 i To all whom it may concern:

for moving .Of Illinois,

,Be it'known that I, RoBnR'r. R. Lnnnvnns, a citizenof the United States, residin at Cairo, in the county of Alexander and tate have inventednew and useful Improvements in Sole-Channeling Cutters, of which the following is a specification.

This invention relates to improvements in needleplates for sole sewing machines, the

principal ObJGCtOf the invention being'to provide a channelcutting knife with means the same into inoperative position when it is desired to use the. machine for sewing rubber or compositionxsoles;v

Another object of the invention is to ,provide locking means for holding the knife in either its operative or inoperative position.

. a cutter substituted.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a plan view of the needle plate constructed in accordance with my invention.

Fig. 2 is an edge view thereof.

Fig. 3 is a view of the cutting member.

Fig. 4 is an enlarged section on line 44 of Fig. 1.

In these views 1 indicates the needle plate which is secured to the machine by the usual screws 2 and is provided with the usual elongated needle hole 3.

As is well known a cutter is used on needle plates for sewing leather soles on shoes, the cutter forming a channel for the thread. lVhen rubber or composition soles are used, however, it is not possible to channel sai soles so that the needle plate carrying the cutter must be removed and a plate without This action of substituting one plate for the other takes up a great deal of time and it is the object of my invention to provide means for moving the .cutter into inoperative position when the machine is to be used for sewing rubber or composition soles. I In carrying out my invention I provide a slot 4 in the plate which extends longitudinally thereof adjacent one of its side edges,

,-. 1921.} Seria1No. 440,694.

asshown. Thisslot accommodatesthe cutter '5, which consists of the shank 6 and the cutting head 7 which is connected with the shank at the upper edge thereof so that the cutter is above the plane of the plate. This head is located at the front end of the shank andthis end of the shank is provided with a p1n.8.which isadapted to engage a hole 9 formed in theplateand forming a continu-- ation of he slot, the pin occupying this hole Specification tr lLettersPa tenti P t t d t, 4, 1921, 7

when the cutter. is in operative position.

The shank is also provided with a hole 10 for receiving the end 11 of the locking bar 12 when the cutter is in operative position. This lockin bar; is slidably supported by the needlep ate by passing through the bearing 13 on said plate. This locking bar passes transversely across the plate and has its rear end provided with a handle portion 14 whichalso acts as a stop for limitmg the outward movement of the bar and its other end is of substantially U-shape. The part 11 is adapted to pass through a hole 15 formed in the side of the needle plate with which hole 10 in the cutter will register when the cutter is in operative position. When this occurs the locking bar is moved toward the left so that its end 11 will pass through the hole 10 and thus lock the cutter in operative position with its cutting head in alinement with the needle hole 3. In this position the pin 8 will engage the hole 9 so that the cutter is firmly held in operative position. When the device is to be used for sewing rubber or composition soles the locking bar is moved toward the left so as to free the cutter and then said cutter is moved to the rear end of the slot and the locking bar moved back toward the left so that its end 11 will engage the cutter at the junction of the pin 8 with the shank and thus hold the cutter in inoperative position. The main part of the locking bar resting upon the edge of the shank d of the cutter will help to hold the same into inoperative po-- and having a part for out the use of any has become worn it can be easily replaced by a new one, thus saving the expense of an en tirely new late. 7

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent;

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that suchchanges fall with in the scope of the appended claims.

What I claim is 1. A needle plate of the class described having a longitudinally extending slot therein and openings communicating with the slot, a cutter includin a shank and a cutting head, the shank s lding in the slot, said of the openings when the cutter is in operative position and an opening for registering with the other opening in the plate and a locking bar slidably'mounted on the plate registering openings for holding the cutter in operative position and for engaging the tools and when the cutter ative position.

passing through the extension for holding the cutter in inoper- 2. A'needle plate of the class described provided with the usual needle slot and having means disposed longitudinally, relative to said plate, whereby a cutter in correlation with said means, is slid'able into'operative HIIdIIItO'lIlOPGIil-UVG posltion, said means and said cutter co-acting to limit the forward movement of" the cutter to a position where the cutting head of said cutter is in aline ment with the needle slot in the'plate, and within the body of said plate, and means for holding the cutter in operative and in inoperative position; v 1

1 3. In a needle plate of the class described provided with the usual needle slot, means angularly disposed, relative to said needle slot, whereby a cutter in correlationwith I said means is movable into operative and into inoperative position, independently of any movement of said plate," and means for holding' the cutterin operativeand in inoperative position. V

In testimon whereof I afiix my si nature.

llOBERT RlLERE ERS. 

